Measurement of the mid-infrared Fourier spectroscopic imaging of whole human face by portable apparatus (size: 50*50 mm, weight: 200 g)

Wei Qi; Yo Suzuki; Masaru Fujiwara; Tsubasa Saito; Satoru Suzuki; Pradeep Kumara Abeygunawardhana; Kenji Wada; Akira Nishiyama; Ichiro Ishimaru

doi:10.1117/12.2071422

20 November 2014 Measurement of the mid-infrared Fourier spectroscopic imaging of whole human face by portable apparatus (size: 50*50 mm, weight: 200 g)

Wei Qi, Yo Suzuki, Masaru Fujiwara, Tsubasa Saito, Satoru Suzuki, Pradeep Kumara Abeygunawardhana, Kenji Wada, Akira Nishiyama, Ichiro Ishimaru

Author Affiliations +

Proceedings Volume 9268, Optics in Health Care and Biomedical Optics VI; 92681V (2014) https://doi.org/10.1117/12.2071422
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

In the daily living space, measurement of the biological-substance distributions such as sebum can be realized by the proposed method of imaging-type 2-dimensional Fourier spectroscopy. This method has the strong robustness for mechanical vibrations. So, the spectrometer (size: 50*50mm, weight: 200g) can be produced without anti-vibration mechanism. Moreover, the phase shifter is a core part of the spectrometer, and it is constructed by the low-price bimorph type actuator which is depending on the vibration control of the piezoceramic in proposed method. It is appropriate as the actuator of the phase shifter from the evaluation results of the actuator straightness and position accuracy in the midinfrared region. As we know, the Fourier spectroscopy has a high light utilization efficiency. Therefore, the low price microbolometer can be used as the imaging sensor. So, the low-price (10,000 U.S. dollars), compact and high portability spectrometer can be produced. Furthermore, the much higher position accuracy in the short wavelength region is requested as we know, the phase shift correction method has been proposed. In this paper, high performance evaluations of the portable spectroscopy apparatus have been discussed by using the CO₂ laser spectroscopy results in the midinfrared region. Then, the phase shift correction method was explained. At the end, we demonstrated the feasibility of the mid-infrared imaging of whole human faces without active illuminations.

Citation Download Citation

Wei Qi, Yo Suzuki, Masaru Fujiwara, Tsubasa Saito, Satoru Suzuki, Pradeep Kumara Abeygunawardhana, Kenji Wada, Akira Nishiyama, and Ichiro Ishimaru "Measurement of the mid-infrared Fourier spectroscopic imaging of whole human face by portable apparatus (size: 50*50 mm, weight: 200 g)", Proc. SPIE 9268, Optics in Health Care and Biomedical Optics VI, 92681V (20 November 2014); https://doi.org/10.1117/12.2071422

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available